KAT-Coder-Pro V2.5 vs Nano Banana 2 (Gemini 3.1 Flash Image): side-by-side summary

KAT-Coder-Pro V2.5 and Nano Banana 2 (Gemini 3.1 Flash Image) are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

KAT-Coder-Pro V2.5, from kwaipilot, has a 256,000-token context window and is priced at $0.74/M tokens input, $2.96/M tokens output on OpenRouter.

Nano Banana 2 (Gemini 3.1 Flash Image), from Google, has a 131,072-token context window and is priced at $0.50/M tokens input, $3/M tokens output on OpenRouter.

Context window

• KAT-Coder-Pro V2.5: 256,000 tokens
• Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens

Price

• KAT-Coder-Pro V2.5: $0.74/M tokens input, $2.96/M tokens output
• Nano Banana 2 (Gemini 3.1 Flash Image): $0.50/M tokens input, $3/M tokens output

Provided by

• KAT-Coder-Pro V2.5: kwaipilot
• Nano Banana 2 (Gemini 3.1 Flash Image): Google

• KAT-Coder-Pro V2.5 model details, providers and pricing
• Nano Banana 2 (Gemini 3.1 Flash Image) model details, providers and pricing